This bill would clarify that domestic, commercial, or industrial wastewater, sewage, or sewage sludge expelled or released from a public sewer system or a public sewage treatment plant does not constitute a hazardous substance under the "Spill Compensation and Control Act." Current law expressly excepts sewage and sewage sludge from the definition of a hazardous substance under the "Spill Compensation and Control Act." This bill would clarify that this exception for sewage and sewage sludge includes domestic, commercial, or industrial wastewater, sewage, or sewage sludge expelled or released from a public sewer system or a public sewage treatment plant. This construction of the phrase "sewage and sewage sludge" would be operative in any application of the "Spill Compensation and Control Act," notwithstanding whether the expulsion or release at issue has occurred prior to enactment of this bill into law.